| Specimen ID | 159144 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| State | WI |
| County | Bayfield |
| Locality | Flag River, near mouth |
| Mapping Accuracy | Accurate |
| HUC8 Name | Beartrap-Nemadji |
| HUC8 Number | 04010301 |
| HUC10 Name | Sand River-Frontal Lake Superior |
| HUC10 Number | 0401030109 |
| HUC12 Name | Larson Creek-Frontal Lake Superior |
| HUC12 Number | 040103010908 |
| Map | |
| Collection Day | 6 |
| Collection Month | 5 |
| Collection Year | 2004 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Comments | Subadults present (40-62 mm TL)and made up 98% of the catch. |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Number Collected | 64 |
| Year Class | adults, subadults |
